Hydrocarbon-burner



(No Modl.)

w. A. MINTEER. HYDROUARB ON BURNER.

No. 498,671. Patented May 30, 1893.

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UNITED STATES PATENT OFFICE.

\VILLIAM A. MINTEER, OF PEACHVILLE, PENNSYLVANIA.

HYDROCARBON-BURNER.

SPECIFICATION forming part of Letters Patent No. 498,671, dated May 30, 1893.

I Application filed July 9, 1892. Serial 110.439.467- (N0 model.)

T0 60% whom it may concern.-

Beit known that 1, WILLIAM A. MINTEER, of Peachville, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in Hydrocarbon-Burners, of which the following is afull, clear, and exact description.

My invention relates to improvements in hydrocarbon burners, such as are adapted to convert a spray of steam, oil, and air into a hydrocarbon gas and burn the same in a combustion chamber; and the object of my invention is to produce a simple burner of the character described, which is constructed and arranged so that steady streams of oil, steam, and hot and cold air will be mingled and burned in the most efficient way to produce intense heat, and further to construct the burner so that it may becheaplymade, easily controlled, and not likely to get out of order.

The invention is embodied in the construction hereinafter described and claimed.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure l is a perspective view of the burner embodying my invention. Fig. 2 is a broken sectional plan of the same. Fig. 3 is a vertical cross section on the line 33 in Fig. 1; and Fig. 4 a cross section on the line 4-4 in Fig. 1.

The frame or body of the burner consists of a cylindrical or tubular portion 10, which terminates atone end in a bell-shaped combustion chamber 11. The tubular portion has at one end a threaded stem or nipple 12, and extending longitudinallythrough its center is a tube 13, which has a reduced bore 14 opening into the combustion chamber. The inner tube 13 is thus surrounded by an air space 15, through which cold air passes, and this space is provided with vents 16 opening into the combustion chamber 11. A pipe 17 leads into the air space 15, the pipe being connected with a source of cold air supply, and having a controlling cook 18, and an eye 17 through which the hot air pipe passes as hereinafter described. A pipe 19 leads through the outer shell of the tubular portion 10 of the burner, and enters the inner tube 13, as best shown in Fig. 3, this pipe being connected with a source of steam supply and having a controlling cock 2 0. A drain cock 2O opens from a longitudinal chamber 20 in the under side of the body 10 and the chamber connects at its front end 20 with the-tube 13 so that the condensed steam in the tube may be easily drawn off. A hollow stem 21 extends longitudinally through the tube 13, and out through the nipple 12, this stem terminating at its inner end in a screen-covered conical nozzle 22, which enters the bore 14, and as the stem is adapted to carry mixed air and oil under pressure it will eject the same in a spray into the combustion chamber. The outer end portion of the. stem 21 is screwthreaded, as shown at 23, and this threaded portion turns in a thread on the reduced end 24 of a casing 25 which forms an oil and air chamber, and the stem 21 within this chamber is perforated, as shown at 25* in Fig. 2, so that the oil and air may flow from the chamber into the stem 21, and from thence to the combustion chamber. The outer end of the stem 21 is held in a stuffing .box 27, and terminates in a hand wheel 27. The stem 21 is thus capable of a valvular action, as by turn ing upon the hand wheel the stem may be forced inward and its inner end will fill the bore 14 of the tube 13, thus closing the tube, and when the tube is not closed the stem may be adjusted so thatjust the right quantity of steam will pass through the bore 14.

The casing 25 is connected with the nipple 12 of the tubular body 10, by an ordinary union 26.. A pipe 30 opens into the upper portion of the casing 25, the pipe connecting with a cold air supply and having a controlling cock 31. The pipe 30 is also connected with a pipe 32, leading to the hot air supply, and this pipe extends through the eye 17 of the pipe 17 and is provided with a controlling cook 33. The pipe 32 connects with the pipe 30 below the cook or valve 31, and it will be seen that either hot or cold air may be admitted to the casing 25, and that by properly adjusting the valves 31 and 33, air of any temperature within certain limits may be admitted to the casing 25. The casing 25 is also provided with an oil supply pipe 28, which is control-led bya valve 29. It follows then, that the oil and air will enter the casing 25, and

mixing, will pass through the perforations 25, I

and out together in a spray through the screencovered nozzle 22.

The operation of the burner is as follows: When it is to be used, a supply of oil is admitted through the pipe 28 to the casing and stem 21; a supply of warm air is admitted through the pipe to the said casing, a supply of cold air is admitted to the space 15 in the tubular body 10, and asupply of steam is admitted to the inner tube 13. It will be seen then,that the steam which rushes through the bore 14, and the spray of oil and air will be thoroughly mingled so as to form a highly inflammable hydrocarbon gas, and sufficient cold air will pass into the combustion cham- 4 ber through the vents 16 to promote and render perfect the combustion of the gas.

It will be understood from the foregoing description that the oil, hot and cold air and steam may be controlled by the several valves so that just the right proportions of each shall be admitted to the combustion chamber, and it will be further noted that as the tubular body 10, the tube 13, and combustion chamber 11 are all in a single piece, the said pipes Y may be conveniently and cheaply cast.

Having thus described my invention, I claim as new and desire to secure by Letters Patent A hydrocarbon burner, comprising a tubular body having a combustion chamber at one end, air vents opening from the tubular body into the combustion chamber, a cold air supply pipe connected with the body, an inner tube extending longitudinally through the body and having a reduced bore connecting with the combustion chamber, a steam supply pipe connected with the inner tube, a casing held at one end of the tubular body and provided with a reduced and threaded end, a hollow stem held to turn in athreaded portion of the casing and having at one end a spraying nozzle which extends into the bore of the inner tube, a series of perforations in the Wall of the hollow stem and within the casing, and oil and air supply pipes arranged to deliver into the casing, substantially as described.

WILLIAM A. MINTEER.

Witnesses:

W. F. CAMPBELL, M. B. HUTCHISON. 

